名校
解题方法
1 . 若
的面积为
,且角C为钝角,则:
(1)求
;
(2)求
的取值范围;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2399f71125b424fd17c5da2ae796e5ce.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b246aa3b56becc905d3fb64c6d5ec4a.png)
您最近一年使用:0次
2021-09-14更新
|
713次组卷
|
2卷引用:云南省昆明市第三中学2021-2022学年高二上学期期中考试数学试题
名校
解题方法
2 . 如图,在平面四边形
中,
,
.
的平分线与
交于点E,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/2/8964ae5c-f45f-46af-b2e2-a863f4be36de.png?resizew=164)
(1)求
及
;
(2)若
,求四边形
周长的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9ba2098ed6b4137b08932524b72ba37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e18f38545fb6d8ba32c993f60dc9a774.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/2/8964ae5c-f45f-46af-b2e2-a863f4be36de.png?resizew=164)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9940b7a52cfb34f91389c8adac6b69e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a58a622e2b1a239f2f96aa1501e9799.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
您最近一年使用:0次
2020-05-27更新
|
1240次组卷
|
6卷引用:云南省昆明市第八中学2020-2021学年高一特色班下学期第一次月考数学试题